Treat her right. Do everything you can for her. Make sure you tell her you love her everyday and tell her she is pretty often. And when he is having a bad day or is sad, make sure you try to make it better.
Awweeee! Sweet. Every day you are with her make sure you say or do at least one thing that will make her feel better about her day. The real trick is to do it 3,5,7,10 etc etc years from now every day.
Take care of her every little changes. Speak always truth. Show her that you can do every thing for her but remember don't get too much filmy. First of all emphasize your Love and then tell her that you love her.
show her that you love her. if there wont be time make time. you kno she always going to love you, jjust show her the love ,and respect. show her how you feel about her. take her places , give her flowers , tell her you love her every morning and everynight , tell her the true ..... if you cheat why cheat if you going to cheat why keep her. find your love in show her that you can be her down for... :)